Plow.



W. W. GREEN.

PLOW.

APPLICATION FILED JUNE 22. I914.

Patented Sept. 21, 1915.

2 SHEETSSHEET 1.

New

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COLUMBIA PLANOCIRAPH c0.. WASHINGTON, b. C.

W. W. GREEN.

PLOW.

APPLICATION FILED JUNE 22. 19M.

Patented Sept, 21, 1915.

2 SHEETS-SHEET 2.

COLUMBIA PLANOCIRAPH co., WASHINGTON. n. c.

'5 i il r WILLIAM W. GREEN, OF NILES, MICHIGAN.

PLOW.

Specification of Letters Patent.

Fateiited Sept. 21, 1915.

Application filed June 22, 1914. Serial No. 846,501.

To all whom it may concern:

Be it known that I, WILLIAM W. GREEN, a citizen of the United States, and a resident of Niles, county of Berrien, and State of Michigan, have invented certain new and useful Improvements in Plows, of which the following is declared to be a full, clear, and exact description.

This invention relates to plows, and more particularly to power operated plows, and its principal object is to provide a plow caable of plowing forward and back across the field without the necessity of turning it around at the end of each furrow. With the use of the ordinary plow, much waste space is left at the ends of the field because of the necessity of turning the plow around,

whereas with the present invention the plow may be run to the end of the field without losing practically any of the space. To such ends, this invention consists in a power operated plow, havingone or more plow shares at each end of the structure, each plow share being adapted to be lowered into working position or raised out of the furrow.

The invention is clearly illustrated in the drawings furnished herewith of which:

Figure 1 is a side elevation of a power plow embodying a simple form of the present invention, the two near wheels having been removed. to illustrate parts that would be otherwise hidden from view; Fig. 2 is.

a plan of the plow; Fig. 3 is a. view of one end looking in the direction of the arrow 3 in Fig. 2; Fig. 4 is a side view of a bracket and fragment of a plow beam; Fig. 5 is a detail vertical cross section, taken on the line 5-5 of Fig. 2, and showing certain driving mechanism for one of the wheels of the structure; Fig. 6 is a detail end view of the opposite wheel and showing its connection with the frame of the structure and Fig. 7 is a plan of the parts seen in Fig.6. 7

Referring to said drawings, 10, designates a main supporting frame, comprising longitudinal members 11, and transverse members 12, secured together to make a strong and substantial frame. Four supporting wheels 13, 14, 15, 16, support said frame and parts carried thereby and three of said wheels are traction wheels, driven from a motor 17 which motor may comprise an internal combustion engine of any of the well known types used in connection with power driven agricultural implements. The motor 17 is mounted upon cross bars 18, of the main frame 10, and, as shown in the drawings, its driving shaft 19, extends toward the wheels 13, 14, and has secured upon its end a beveled pinion 20, which is arranged'to mesh with either of a pair of beveled gear wheels 21, 22, slidably mounted upon a shaft 23, ournaled on the frame 10. The beveled gear wheels 21, 22, are connected to the shaft 23 by a spline running in a groove in the shaft, and a lever 24 is provided wherebythe beveled gear wheels may be shifted to bring either one into mesh with the beveled pinion 20. This gearing provides one form of means for driving the plow forward or backward, as desired.

Extending parallel with the shaft 23, is

a drive shaft 25, journaled on the frame 10,

and said shafts 23, 25, are geared together by a pinion 26, fast on the shaft 23, and a gear wheel 27 fast on the shaft 25, and intermeshing with said pinion 26. On the ends of said shaft 25, are sprocket wheels 28, over which are trained sprocket chains 29, which are trained over larger sprocket wheels 30, fast upon the shafts 31, 31, of the traction wheels 13, 14. Said shafts 31, 31*, are journaled in bearing bOXBSBQ, 33, secured to cross bar 12 of the'frame. A compensating gear mechanism 34, is interposed in the drive shaft 25, in accordance with the usual practice in the power plant of a motor driven vehicle. The'wheels 15, 16, are

the steering wheels of the plow and are mounted upon knuckles 35, 36, (see Figs. 4,5 and 6) the knuckle members 37,38, having steering arms 39, 40, which are connected together by a connecting rod 41, whereby the steering wheels may be moved in unison. Said connecting rod may be operated by any of the well known forms of steering apparatus and as here shown, is operated from a steering wheel 42, by a worm gear 43, fast on the lower end of the shaft 44, of said steering wheel, and a worm gear 45, fast on a shaft 46, a crank arm 47 at one end of said shaft 46, that engages with the connecting rod 41.

The traction wheel 15, is driven from the power plant of the machine and one form of driving mechanism is shown to comprise a sprocket wheel 17, fast on the drive shaft 25, a sprocket chain 4.8, trainedover said sprocket wheel and over a sprocket wheel l9 fast on a shaft 50, journaled in the sta,

tionary member of the knuckle 35, as clearly indicated in Fig. 5. The drive wheel'15, is shown as provided with centrally located stem or shaft 51, extending through the member 37 of the knuckle 35, and connected to the shaft 50 by a universal or knuckle joint 52, whereby the wheel 15, may be turned upon the knuckle 35, while being driven by the shafts 50, 51. Obviously any equivalent form of driving mechanism between the drive shaft 25, and the wheel 15, may be substituted for the one shown and described.

The knuckle 36 of the wheel 16, yieldably supports the frame 10, and is shown as slidably mounted in a slide bearing 53, secured to the frame. The member 36*, of said knuckle rests upon a coil compression spring 54-, which is carried by the lower end of the bearing 53, and a coil compression spring 55, rests upon the upper end of the bearing 53, and is connected to the member 36 of the knuckleby a bolt 56.

The mechanism thus far described comprises a simple formof traction engine'and I desire it to be understood that I do not intend to limit myself to the form shown and described as it is obvious that many types of traction engines may be substituted therefor.

At each end of the frame of the structure is a plow A, B, each plow beingshown as comprising a plow beam 60, and a plow share 61, carried thereby, whose form and construction maycomprise any, well known to those skilled inftheart and capable of Working in conjunction with. the power driven apparatus. The plow shares are in alinement with each other and their points are directed toward each other. The plow beams are shown aspivotally connected to the frame of the machine as at- 62, brackets 7 63 being'secured to the frame ofthe traction engine and connected to the ends, of

theplow beams by bolts, or otherwise as de-' sired. The plows are locatedbetween the pairs of wheels and near the wheels 13,y15,

in order that the said wheels 13,15, may

travel inthe furrow last made, .so that one of the plows will turn up the next furrow at the proper place. Each plow is provided, with means for raising or lowering the same, and a simple form of mechanism is shown to comprise a hand lever 63, pivotallymounted upon a standard 64, secured=to the frame, and a link 65 connecting one end of the lever 63 with the'plow beam-60. If desireda coil tension spring 66, may bev interposed between some stationary portion of the frame, a

for instance. the bracket 64: and each plow beam 60, to assist in raising the plow share the furrow and held in raised position and the other one (B) is lowered as shown in Fig. l; the engine having been started, the lever 24 is swung in the proper direction to throw the beveled gear wheel 21 into mesh with the beveled pinion 20, thereby causing the power plant to drive the structure in the direction of the arrow a, in Fig. :1. hen

arriving at the end of the field, themachine I is steered out of its course so as to bring the wheels 13, 15, into alinement with the furrow just made; the plow B, is then raised out of the furrow and the plow A, lowered. The apparatus is then driven forward with the wheels 13, 15, running in the furrow just made, and the plow A, thereupon cuts the next furrow at the proper distance away from the first one. In this way the machine can be driven forth and back across the field without the necessity ;of turning it around.

Obviously gangs of plows may be substituted for the single plow, without departing from the spirit of this invention.

A particular advantage is obtained by rea-.

sonof thelfact'that the two wheels, 13, 15, are so arranged with respect'to the plow shares that they travel in the previously made furrow because the ground in the furone, 14, on theland side- The eflioiency of the machine is thereby greatlyfincreased without .the' necessity of anabnormally high powered engine. 7 Y

.More or less alterations. and modifications row is usually firm and even so that the two wheels, 13, 15, obtain better traction than the are-possible without departing from the,

spirit ofthis invention. and I desire, therefore, not to limit myself to the exact form and construction shown and described, but

intendin the following claims to point'out all of the invention disclosed herein.

I claim as new anddesire to secure by Let ters Patent 1.1113 power plow, a motor driven,

wheeled structure having two rear drive wheels. and a;{ front driven wheel in line with oneof the rear drive wheels, plows and rais ing mechanism therefor at the ends of said structure. said plows pointed toward each otherand trailing adjacent the frontdriven wheel vandjrear drive wheel in'line there with, said. plows-being disposed relative to said alined front and rearv drive .wheels in such manner 1 that said alined :wheels may. travel in afurrow and the plow cut the "next -W'. 2. In a power plew, a motor driven,

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wheeled structure having two rear drive wheels and a front drive wheel in alinement with one of said rear drive wheels, alined plows, one secured to said structure at each end thereof and pointed toward the other, operating means for raising and lowering said plows and means for holding said plows in raised position, said plows being disposed relative to said alined drive wheels in such manner that said alined drive wheels may travel in a furrow and one plow cut a next adjacentfurrow.

3. In a power plow, a four Wheeled structure, a motor carried by said structure and drive mechanism between said motor and three of the wheels of said wheeled structure and including reversing mechanism for reversing the direction of travel of the plow, two of said drive wheels being in alinement with each other, oppositely pointing, alined plows secured to the ends of said structure, and plow raising and lowering mechanism, said plows being disposed relative to said alined drive wheels in such manner that said alined wheels may travel in a furrow and 25 the plow cut a next adjacent furrow.

WILLIAM W. GREEN. Witnesses H. P. RICHARDS, A. L. MATHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

